Shortened footnote and citation:
{{sfn|Perryman|2009|p=}}
* {{cite book | last=Perryman | first=M. A. C. | title=Astronomical Applications of Astrometry | publisher=Cambridge University Press | publication-place=Cambridge | date=2009 | isbn=978-0-521-51489-7 | oclc=244652602}}
Named reference:
<ref name="s901">{{cite book | last=Perryman | first=M. A. C. | title=Astronomical Applications of Astrometry | publisher=Cambridge University Press | publication-place=Cambridge | date=2009 | isbn=978-0-521-51489-7 | oclc=244652602 | page=}}</ref>